Improvement in methods of preserving ice in ice-houses



`UNITED STATES PATENT QFEIQE.

THEODORE KRAUSCH, OF NEW YORK, N. Y. A t

Specification forming partof Letters Patent No. l86,81, dated January 23, 1877 application filed November 22, 1876.

To cli whom it may concern:

Be it known that I, THEoDoRE KEAUSGH,l

. ice-house adapted to my improvement. Fig.

2 is a horizontal section thereof.

Similar letters of reference indicate corresponding parts in both gures.

This invention has for its object to permit the use of light structures for ice-houses in place of the very cumbersome devices now deemed necessary.

Ice-houses for brewers, 8vo., are now usually made with immense receptacles at the upper stories for containing the ice, the matter to be cooled being placed on the lower ofors; but experience shows that, unless a very large stock of ice is laid in, the structure will become useless after a short while by the melting` of the ice, and also that it is not practicable to frequently renew the supply of ice in suchan ice-house.

Myinvention consists in conducting a current of cold air or gas into contact With the Warm air Whichcollects in the upper part ot the ice-house above theV ice exposed to the direct action ot' such Warm air. By this means the Warmedair will be cooled before it can aifect the ice and melt the same. This enables me to use a smallquantity of ice with better effect than that with which large quantities can now be utilized, inasmuch as a reduction of temperature to the extent of but al Very few degrees, by means of the cooling appliances, will suffice to preserve the whole body of ice, and to maintain such a low temperature in the whole apartment as could not otherwise be maintained without a-very expensive structure, costly appliances, or a larger body of ice than would be practicable.

It will be apparent that when, from low external temperature, or other causes, there is little tendency of the ice to melt, it may not be necessary to maintain the operation of the cooling apparatus, which need only be put 1 conduct one or more pipes, B, containing cooled air or other cooling medium, which pipe extends from a socalled ice-machine, 0, the cooling medium circulating or passing through the pipe, and serving to absorb the heat which is liberated in the ice house, and to prevent the same from aecting. and consuming the ice therein contained. y

As to the construction of the ice machine, that does not constitute part ot my present invention 5 but it is part of my present invention to conduct the circulating cooling' medium, and cooling-pipe that extends from such ice-machine, into the ice-house, above the ice contained in the latter, so that it may affect the warmer strata of air that will rise to the top within such icehouse.

I do not claim the use of an icc-machine for the purpose of congealing substances, as described in Patent No. 163,576; but

I do claim as my invention- The Within-described mode of preserving ice in ice-houses-that is, by subjecting the air in contact with the body of the ice to the action of cooling appliances, as set forth.

The foregoing description of my invention signed by me this 20th day of November, 1876.

THEODORE KRAUSCH. 

